package com.hmall.item.web.Interceptor;

import com.hmall.common.utils.BaseThreadLocal;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class ItemInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String authorization = request.getHeader("authorization");
        //将authorization里的userId放入ThreadLocal中
        if (authorization != null && !"".equals(authorization)) {
            BaseThreadLocal.setUserId(Long.parseLong(authorization));
            return true;
        }
        return false;
    }
    
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        HandlerInterceptor.super.postHandle(request, response, handler, modelAndView);
    }
    
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        BaseThreadLocal.removeUserId();
    }
}
